input.error { border: 1px solid red; }
label.error {
    background:url("img/unchecked.gif") no-repeat 0px center;
    padding-left: 16px;
    padding-bottom: 2px;
    font-weight: bold;
    color: #EA5200;
}
label.checked {
    background:url("img/checked.gif") no-repeat 0px center;
}